GameKit peer to peer wifi without wireless router?

Thanks in advance for any thoughts about this. I'm looking for a way to do realtime inter-app communication in iOS via wi-fi (I need about 150 ft range and don't think bluetooth offers this) and wonder about the peer-to-peer connectivity offered by GameKit which, apparently offers both bluetooth and wi-fi connectivity. My question is: must participating devices be members of an available wireless network (via a wireless router) or is this connectivity truly p开发者_高级运维eer-to-peer requiring no router?

I understand Wi-fi Direct is coming and would likely be an option. Just wondering if I can do this utilizing services available in iOS today.

Thanks!

Tim

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A router is required for Wi-Fi connectivity. Bluetooth connectivity does not need one.